San Diego Casitas provides well-designed, quality custom design, build and remodel services for Accessory Dwelling Units (ADU) and granny units. Known as "granny flats" or "in-law suites," ADUs are an increasingly popular way to add affordable housing for underutilized properties in the greater San Diego area. With years of experience working closely with local communities and cities, we ensure all of your ADU pre-permit needs are met.